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Last Map Update: Wed, Aug 12, 2026 at 4:28:25 pm EDT

A large swath of Saharan dust stretches from the Gulf eastward to northern Africa. Rain chances through Thursday will generally be limited to any broken cloud line formation or isolated storms pushing southwestward off the South Florida Mainland. Although a tropical wave will push through the Keys Friday into Saturday, the dry, dusty air may stint what would normally be more widespread storm development for those periods. Dust concentrations may actually increase by late weekend into early next week, with near-nil rain chances possible for several days.
A Coastal Flood Statement is now in effect for the Middle Keys and remains in effect for the Lower Keys through Thursday afternoon. Higher than normal tides brought on by the New Moon will lead to minor saltwater flooding in the Lower & Middle Keys. This will be especially true in low lying elevation streets and lots. Some storm drains will overflow & seawalls may be overtopped. Boaters should expect less clearance under fixed bridges.
8 PM Update: Two disturbances are being monitored by the National Hurricane Center. The disturbance located in the central Atlantic has the greatest chance of formation, 80% in 7 days, into a tropical depression. This system does not pose a threat to the Florida Keys at this time. Newly formed Tropical Storm Cristobal in the Central Subtropical Atlantic poses no threat to the Florida Keys.
A Coastal Flood Statement is in effect for the Lower Keys! Today...Mostly sunny with a slight chance of showers and thunderstorms, mainly in the Upper Keys. Highs in the lower 90s. East to southeast winds near 10 mph, decreasing to 5 to 10 mph. Chance of rain 10 to 15 percent.
Mariners should account for less clearance under fixed bridges around high tide! Today...E to SE light to gentle breezes, becoming light. Gentle breezes prevail in FL Straits, becoming light to gentle. Seas: Bay/Gulfside 1 ft or less. Hawk Channel 1-2 ft; FL Straits 2-3 ft, subsiding to 1-2 ft; SE Gulf 1-2 ft. Bay/nearshore waters smooth. A slight chance of showers and thunderstorms.
Mariners should account for less clearance under fixed bridges around high tide! Today...E to SE light to gentle breezes, becoming light. Gentle breezes prevail in FL Straits, becoming light to gentle. Seas: Bay/Gulfside 1 ft or less. Hawk Channel 1-2 ft; FL Straits 2-3 ft, subsiding to 1-2 ft; SE Gulf 1-2 ft. Bay/nearshore waters smooth. A slight chance of showers and thunderstorms.

 


 

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